Home / 11,904.56-17,856.60-3,140.24

Finding the Fourth Proportional to 11,904.56, 17,856.60 and 3,140.24

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Solution

The fourth proportional to 11,904.56, 17,856.60 and 3,140.24 is: 4,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.56 : 17,856.60 = 3,140.24 : x
  2. Step 2: Convert to fraction form
    11,904.56/17,856.60 = 3,140.24/x
  3. Step 3: Cross multiply
    11,904.56x = 17,856.60 × 3,140.24
  4. Step 4: Simplify right side
    11,904.56x = 56,074,009.58
  5. Step 5: Solve for x
    x = 56,074,009.58/11,904.56
  6. Step 6: Final answer
    x = 4,710.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.